Adjustable telephone-transmitter



(No Model v AJGARTNER. Y

- ADJUSTABLE TELEPHONE TRANSMITTER. N0. 570,204.

Patented Oct. 27, 1896.

- WITNESSES: 7 INVENTOR M3. QM. W

ATTORNEYS THE NORRIS mks 00.. PHGTMITNQ. \nsmncmm n. c.

I UNITED STATES PATENT OFFICE.

ALFRED GARTNER, OF NEWARK, NEW JERSEY, ASSIGNOR TO ROBERT BAKER AND JOHNFILMER, OF BROOKLYN, AND EDGAR L. RYDER,

OF SING SING, NEW YORK.

ADJUSTABLE TELEPHONE-TRANSMITTER.

SPECIFICATION forming part of Letters Patent No. 570,204, dated October1896.

Application filed February 15, 1896. Serial No. 57 9,410. (No model.)

T0 at whom it may concern.-

Be it known that LALFRED GARTNER, a citizen of the United States,residing in Newark, Essex county, and State of New Jersey, have inventedcertain new and useful Improvements in Adjustable TelephoneTransmitters; and I do hereby declare the following to be a full, clear,and exact description of the invent-ion, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

The object of my invention is to provide a telescopic support for atelephone-transmitter, so that the latter can be moved to any desiredheight or swung to any desired position, to thus clear the top of thebattery-box usually found in telephone-services and used as a desk whenmessages are to be Writtendown.

The invention consists in the improved telescopic telephone-transmittersupport, and in the combination and arrangement of the various partsthereof, substantially as will be hereinafter more fully described, andfinally embodied in the claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts in the two views, Figure 1 is afront elevation of an ordinary telephone-service provided with myimprovement, and Fig. 2 a side elevation thereof. 7 i

In said drawings, a represents the frame on which are mounted thebattery-box a and the magneto-box a on which latter thetelephone-receiver is removably arranged, all as clearly shown and ofthe usual and well-known construction. On the frame a is also arrangedthe bracket 1), provided with a bearing-surface c, on which arepivotally secured, by means of the headed pin or screw 61, the arms orlevers e and f. To the outer ends of said arms is pivotally secured askeleton A, consisting of a series of sets of crossing arms e f, 6 f e fand 6 f pivotally connected at their centers and also at their outerends. The free ends of the arms 6 and f are pivotally secured to theback of the telephonetransmitter g by means of a pin or screw g or inany desired manner. The said transmitter is arranged at right angles tothe skeleton A and is connected by flexible wires h with thebinding-posts 2', arranged in and connected with the telephone-circuitin the usual manner. By this arrangement the telephonetransmitter 9 canbe moved to any height desired, as the skeleton A, on account of itspeculiar construction, is collapsible and extensible, and can be swungsidewise into any position, as the skeleton carrying-arms e and f arepivotally secured on the bearing-surface c of the bracket 6.

In the rear of the skeleton A and secured to the bracket 1) is adownwardly-extending rod k, adapted to be engaged by an eye'or loop,arranged horizontally and secured to or made integral with the pin orscrew g. When said loop is in engagement with and adapted to slide onsaid rod, the telephone-transmitter is limited to an up-and-downmovement, as will be manifest.

The length of the rod is smaller than the length of the skeleton whenfully'extended, so that the eye or loop (of screw g) can be withdrawnfrom the said rod, and the transmitter moved to either side and into anyposition required.

I do not intend to limit myself to the precise construction shown anddescribed, as various alterations can be made without changing the scopeof my invention; but

What I claim as new is In a telephone-service the combination with theframe, of a bracket projecting from said frame, a telescopic skeletonpivotallysecured to said bracket and consisting of a series of sets ofcrossing arms, pivotally connected at their centers and at their outerends, the telephone-transmitter arranged at the free end of and at rightangles to said skeleton, a loop or eye projecting from said transmitter,and a rod secured to the bracket and adapted to engage said loop or eye,substantially as and for the purposes described.

In testimony that I claim the foregoing I have hereunto set my hand this8th day of February, 1896.

ALFRED GARTNER. Witnesses DUNCAN M. ROBERTSON, F. T. LooKwooD.

